Manifold header cap



FIG. 1 is a front elevation view of a manifold header cap embodying our new design;

FIG. 2 is a back elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top perspective view thereof; and,

FIG. 8 is a bottom perspective view thereof. 

The ornamental design for a manifold header cap, as shown and described. 